Cookie Monster can help teach preschoolers about self-control, found a study from University of Iowa. The research found when preschoolers watched videos of Cookie Monster trying to control his desire to eat cookies, the kids showed more self-control. Cookie Monster sings, "Me want it, but me wait." Preschoolers who watched Cookie Monster practicing self-control were able to wait four minutes longer than peers who watched a different Sesame Street video. Children who viewed the Cookie Monster videos were also able to better control the impulse to shout out character names, and they remembered and repeated longer number sequences. The new Cookie Monster curriculum from Sesame Street aims to enhance working memory, teach self-control and improve ability to switch gears between activities.